Raw plugs for 6 x 100 screws?

GT60

Hi I am fixing joists to the outside house wall for decking using 6 x 100mm screws plugs but unsure what size diameter plug i need or even type.
Advise on the type of screw also please
The joist is 45mm wide and will have  about a 10mm gap between the joist and the outside wall for which i will be using a cut up hose pipe 
 
Thanks 

daivid

Standard brown plugs, just make sure to get good quality ones e.g. branded Rawl or Fischer, the cheaper ones are not the same IMO.

GT60

daivid said:

Standard brown plugs, just make sure to get good quality ones e.g. branded Rawl or Fischer, the cheaper ones are not the same IMO.

What size plugs?

stuart45

daivid said:

Standard brown plugs, just make sure to get good quality ones e.g. branded Rawl or Fischer, the cheaper ones are not the same IMO.

Yes, I find that some of the cheap ones don't grip with a 7mm bit. Have to use a smaller bit and waggle the drill a bit to get it right.
Can also depend on the wall material. Sometimes have to use a 6mm or 6.5mm to get it right.

williamgriffin

GT60 said:

daivid said:

Standard brown plugs, just make sure to get good quality ones e.g. branded Rawl or Fischer, the cheaper ones are not the same IMO.

What size plugs?

Brown ones and use a 7mm drill bit.

williamgriffin

GT60 said:

Hi I am fixing joists to the outside house wall for decking using 6 x 100mm screws plugs but unsure what size diameter plug i need or even type.
Advise on the type of screw also please
The joist is 45mm wide and will have  about a 10mm gap between the joist and the outside wall for which i will be using a cut up hose pipe 
 
Thanks 

What brand of screws are you intending to use?

I am not convinced a 10mm gap is a good idea.

GT60

Not sure on screw or plugs only what ive read on wickes site about the gap for drainage Step 15
 https://www.wickes.co.uk/how-to-guides/garden-landscaping/plan-lay-a-deck
Thanks everyone 

Moss5

I would not use size 6 (3.5mm) screws for a wall plate.
I would use an SDS drill 8mm and 8mm wall plugs.
Corrosion-resistant screws size 10 (5mm) would be my choice.
https://www.screwfix.com/p/turbocoach-coach-screws-yellow-zinc-plated-10-x-100mm-50-pack/89717

https://www.screwfix.com/p/timco-in-dex-10100inh-flanged-hex-index-timber-screws-silver-ruspert-10-x-100mm-10-pack/5396x

https://www.screwfix.com/p/rawlplug-rawl-4-all-wall-plugs-8mm-100-pack/48521

GDB2222

Is this above or below the DPC?

Ectophile

williamgriffin said:

GT60 said:

daivid said:

Standard brown plugs, just make sure to get good quality ones e.g. branded Rawl or Fischer, the cheaper ones are not the same IMO.

What size plugs?

Brown ones and use a 7mm drill bit.

In case it isn't obvious, the manufacturers colour code the plugs.  So "brown" actually defines what size the plug is.

bris

I used hammer fixings for the decking joists 20 years ago. https://www.screwfix.com/p/rawlplug-universal-ffi-frame-fixings-10-x-100mm-25-pack/73814?tc=KA2&ds_kid=92700048793290424&ds_rl=1249413&gclid=Cj0KCQjwlvT8BRDeARIsAACRFiXKNb4MXK1PM-gb_pvvl8K_FfoV02PmWINIZjGM2ARh4Y-9YRFZqz0aAqQEEALw_wcB&gclsrc=aw.ds

Just drill straight throuhg the joist into the wall and hammer them in

The problem with 100mm screws and plugs is it's a !!!!!! to get them screwed in.